Universal box template

Single 12-inch Vented / Bass-Reflex Subwoofer Enclosure

PRO

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Description

This vented (bass-reflex) enclosure is expertly designed for a single 12-inch round subwoofer, featuring a 40 L chamber precisely tuned to 35 Hz. Constructed from 16 mm (5/8 inch) material in a simple rectangle shape, the cabinet measures 590 × 391 × 352 mm (23.2 × 15.41 × 13.87 in). One internal brace reinforces the structure and minimizes panel vibration, making it ideal for high-output systems. The design utilizes one L-shaped slot port with an area optimized for high-output, large-excursion drivers and SPL-oriented applications requiring high airflow. Whether used for daily car audio with trunk space constraints or as a general-purpose home subwoofer for music and stereo, it perfectly balances bass extension, size, output, and low distortion.

Volume & tuning

40 l
Internal volume
35 Hz
Tuning frequency

Box properties

Shape
Simple Rectangle
Material thickness (mm)
16
Material thickness (inch)
5/8
Box dimensions (mm)
590 × 391 × 352
Box dimensions (inch)
23.2 × 15.41 × 13.87
Max RMS speaker power up to
1500 W
Speaker mounting panel layers
Single
Number of bands
1

Enclosure & speaker

Enclosure
Vented
Speaker configuration
Single
Number of speakers
1
Speaker size
12"

Port

Port type
Rectangular
Port count
1
Port area (sq.mm)
18241
Appearances
View all
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